A tractor rollover critically injured a Yankton man today.
At approximately 10 a.m., emergency crews responded to a tractor rollover at State Highway 52 and Calumet Drive, west of Yankton, near Lewis & Clark Lake.
Mark Yonke of Yankton was inside the cab when it rolled multiple times. Investigators say Yonke was mowing grass at a townhouse property when the tractor rolled.
Crews transported Yonke to Avera Sacred Heart Hospital. He was later transferred to Sioux Falls via helicopter.